Music-leaf turner.



Patented-July 3, |900. l W. L. CAYWOD &. J. M. GASAWAY.

MUSIC LEAF TURNER.

(Application led Sept. 13, 1899.\

(No Model.)

mi Norms Patins co.. PHoTMTHo., WASHING-ron, u. c.

AUNITED STATES PATENT OFFICE.

VALTER LfCAYv/VOOD AND JOHN M. GASAVVAY, OF HUME, MISSOURI.

MUSIC-LEAF TURNER.

SPECIFICATION forming part of Letters Patent No. 653,067, dated July 3,1900.

Apnlication led September 13, 1899. Serial No. 730,293. (No model.)

To all whom, it may concern:

Beit known that we, WALTER L. CAYwooD and JOHN M. GAsAwAY, citizens ofthe United States, residing at Hume, in the county of Bates and State ofMissouri, have invented certain new and useful Improvements inMusic-Leaf Turners; and we do declare the following to be a full, clear,and exact description of the invention, such as will enable othersskilled in the art to which it appertains to make and use the sam e.

The invention relates to a music-leaf turner.

The object of the invention is to provide a simple, durable, andinexpensive device of this character by means of which music-books ofdifferent thicknesses or a small or large quantity of sheets of musicmay be easily and quickly clamped in position; furthermore, to

provide means whereby each sheet may be successively released andturned.

To this end the invention consists in certain features of constructionand combination of part-s, which will be hereinafter fully described andclaimed.

ln the accompanying drawings, Figure 1 is a front view of our improvedmusic leaf turner, the upper portion of one piece of the clamp beingbroken away to show the manner of locking the two pieces together. Fig.2 is a side elevation of the same. Fig. 3 is a cross-sectional view onthe line X X of Fig. 1. Fig. 4 is a rear elevation of the upper end ofthe device, showing the detachable clampingarms. Fig. 5 is a verticaltransverse section through the upper end of the device, taken on line y.1/ of Fig. 1.

In the drawings the saine reference characters indicate the same partsof the invention.

1 and 2 denote the parts forming the clamp. The part 1 has near' itslower end a transverse aperture 3, in which is inclosed a spring 1.

5 denotes a headed rod encompassed by saidspring and having its innerend piv'oted to the lower end of the part 2 of the clamp. The upper endof the part 2 of the clamp is provided with a hinged rack-bar 7 ,whichis adapted to drop into a transverse notch 8 in the upper end of thepart 1 and engage a pin 9. It is evident that by this construction booksof different thicknesses or the unbound leaves of as many selections asit may be desired to play may be easily and quickly secured between thetwo parts of the clamp, as all that is necessary is to separate theparts of the clamp, place the back of the book or the back edges of theleaves between the parts, and then draw the parts together and lock themclosed by the rack-bar.

Any suitable means may be employed for supporting the device upon themusic rack or board of a piano, organ, or stand; but that shown in thedrawings is preferred, it consisting of' a vertically-adjustableback-piece 10, having a set-screw 11 and hinged arms 12, which areadapted to be sprung over the upper edge of the board.

13 denotes a plate secured to one edge of the part 1 of the clamp andprovided with vertically-alinedv catch-lingers 14. Projecting from thesefingers and extending transversely across the front of the part 1 of theclamp and thence inwardly and secured to the edge thereof areguide-wires 15.

lrdenotes the music-turning arms, the inner ends of which are secured ina metallic sheathing 16', fixed to the front face of the part l of theclamp. These arms are made of spring material and are adapted to beengaged with the sheets of music, and after each sheet has been playedit is thrown from one side to the other.

It is of course understood that while we have shown but four arms moreorless may be used, if desired. The arms have upwardlyprojecting lingers17, which engage the sheets of music.l

18 denotes a trip bar the upper end of which is inclined rearwardly, asshown at 19, and is provided with teeth 20, which arc arranged one abovethe other in stair-step fashion.

21 denotes an operating-lever journaled in a bearing 22 and having acrank-shaft 23, which is pivoted to the trip-bar near its'lower end andby means of which said Ytrip-bar is reciprocated, the upper end of thetrip-bar being guided in a loop-bearing 23.

24. denotes a coil-spring which engages a tongue 25 of the bracket and anib 26 at the lower end of the trip-bar.

27 denotes a spring connected to the part 1 IOD of the clamp andengaging the operating-lever to elevate it to its normal position afterit has been depressed by the finger.

In operation, the leaf-turning arms being engaged with the sheets ofmusic and with their respective catch-lingers, by depressing theoperating-lever the trip-bar will be elevated the distance of onetooth,which slightly elevates the lowermost arm, which engages the frontsheet of the music and releases it from its catch-finger. When thepressure is removed from the lever, its spring will return it to itsnormal position, thus lowering said trip-bar, which will then have itstooth next to the lowermost one forced immediately under the lowerinostremaining sheet-turning arm by the coil-spring 24, so that a seconddepression of the lever will release said arm and permit it to turn thesecond sheet of music. This operation is continued until all the sheetshave been turned. lf it be desired to repeat the music, the arms aregrasped and forced across and engage with the catch-iingers, there beinga sufficient downward spring exertion of the arms to cause them remainin engagement with said lingers after they have been slid pasttheinclined 'ends thereof.

It will of course be understood that various changes in the form,proportion, and the minor details of construction may be resorted towithout departing from the spirit or sacriiicing any of the advantagesof this invention.

Having thus described the invention, what is claimed, and desired to besecured by Letters Patent, is-

In a music-leaf turner, a clamp consisting of twolongitudinally-parallel parts, a spring incased in one part near itslower end, a bolt having one end hinged to the other part and its otherend projecting through said spring and provided with a head, a rack-barpivoted in a recess formed in the upper end of one part, and atransverse pin stored in a recess of the upper end of the other part tocoact with said rack-bar, a vertically-adjustable back-piece secured toone of said parts, and clamping-arms hinged to said back-piece.

In testimony whereof we have hereunto set our hands in presence of twosubscribing witnesses.

WALTER L. CAYWOOD. JOHN M. GASAWAY. Witnesses:

J. A. DUNN, H. STANDIsH.

